This is a new API to stop the drivers directly looking up the glyph pictures
in a global array. It provides a define GLYPH_HAS_GLYPH_PICTURE_ACCESSOR for
drivers to work in a compat way.
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>